Heating-drum



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I HEATING DRUM. No. 599,068. Patented Feb. 15, 1898.

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, tion and operation and comparatively inexcommunicate with and supportan annular chamber 13, which is arranged concentrically UNITED STATESPATENT OFFrcE,

HUGH OAPNER STOVEB, OF PHILA DELPHIA, PENNSYLVANIA.

HEATING-DRUM.

SPECIFICATION forming part of Letters Patent iNo. 599,068, datedFebruary 15, 1898. Application filed January 219, 1897. Serial No.621,215. (No model.)

To ctZZ whom it may concern:

Be it known that I, HUGH OAPNER STO- VER, a citizen of the UnitedStates, residing at Philadelphia, in the county of Philadelphia andState of Pennsylvania,have invented certain new and useful Improvementsin Heating-Drums, of which the following is a full and completespecification, such as will onable those skilled in the art to which itappertains to make and use the same.

This invention relates to heating-drums; and the object thereof is toprovide an .improved device of this class which is adapted to be used inconnection with a lamp, oilstove, gas-stove, and other and similardevices, a further object being to provide a device of this class whichis simple in construcpensive and which may be connected with a lamp,oil-stove, gas-stove, or other heating device in any desired manner.

The invention is fully disclosed in the following specification, ofwhich the accompanying drawings form a part, in which the separate partsof my improvement are designated by the same nu merals of reference ineach of the views, and in which Figure 1 is a vertical section of myimproved heating-drum on the line 1 1 of Fig. 2; Fig. 2, a transversesection on the line 2 2 of Fig. 1, and Fig. 3 a plan view thereof.

In the practice of my invention I provide a heating-drum consisting of acylindrical casing 5, which is open at 'the bottom, as shown at 6, andprovided with a top plate 7, and said heating-drum isprovided with acircular row of tubes 8, which are arranged just within the same andwhich communicate with similar openings 9 in the top plate 7, and all ofsaid tubes 8, with the exception of four, are provided at their lowerends with elbows 10, by which they are connected with the casing 5 andwhich communicate with corresponding circular openings 11 in saidcasing. The other four of the tubes 8 rest upon and communicate withradial tubes 12, 'which of the casing 5, and said tubes 12 are securedat the outer end thereof to the said casing, as shown at 14, andcommunicate with corresponding openings formed therein, and the lowersides of the tubes 12 are in line with the bottoms of the tubes 8, whichare provided with the elbows 10.

Within the circular row of tubes 8 is another circular row of tubes 15,which are arranged concentrically of the tubes 8 and of the center ofthe casing 5, and these tubes commu nicate at their lower ends with theannular chamber 13 and with corresponding circular openings 16 in thetop plate, and at the center of the casing 15 is a tube 17, whichextends downwardly to the bottom of the annular chamber 13 and the lowerend of which is closed andthe upper end thereof communicates with acorresponding opening 18 in the topplate, and the lower end of the tube17 is placed in communication with the annular chamber 13 by radialtubes 19.

' In the operation of the device air enters through the elbows 10 andpasses upwardly through the tubes 8, and air also enters through thetubes 12, and a portion thereof passes upwardly through the tubes 8,which communicate with said tubes :12, and the air that enters throughthe tubes 12 also passes into the annular chamber 13 and into thecentral tube 17 and upwardly through the tubes 15, and in Fig. 1 Ihaveshown in dotted'lines at" 20 the chimney of a lamp, oil-stove, gasstove,or similar device, and in practice the drum is supported over saiddevice in any desired manner, and the hot gases or products ofcombustion pass upwardly through said drumrarou'nd the annular chamber13 and around the tubes 8, 15, and 17, and the air in said chamber andin said tubes is highly heated. The top plate 7 is'also provided with aplurality of small openings 21, through which the hot gases and productsof combustion pass, and any desired number of these openings orperforations may be employed, and similar openings or perforations arealso preferably formed in the upper walls of the casing 5.

My improved heating-drum is simple in construction and operation and isperfectly adapted to accomplish the result for which it is intended, andthe same maybe used in connection with a coal or wood stove, in which 7event an escape-flue for the bustion will be necessary.

Having fully described my invention, I

products of comclaim as new and desire to secure by Letters Patent- Asan improved article of manufacture, a heating-drum comprising a casing5, which is cylindrioalin form and provided with an open bottom and topplate 7, a row of tubes 8, communicating with openings 9 in said topplate part of said tubes being provided with elbows 10 which communicatewith openings 11 in the sides of said cylindrical casing, radial tubes12 part of said tubes 8 being in communication therewith, and an annularcasing 13 supported by-the inner ends of said tubes 12 which alsocommunicate therewith and with openings 14E in the outer oasin g, a rowof tubes 15 communicating with said annular casing at the upper sidethereof; and with openings 16 formed in said top plate, a tube 17supported in said annular casing and communicating with an opening 18,in said top plate, and radial tubes 19 communicating with said tube 17,and with the annular chamber formed in said casing 13, substantially asand for the purpose described.

In testimony that I claim the foregoing as my in vention I have signedmy name, in presenoe of the subscribing witnesses, this 22d day ofJanuary, 1897.

HUGH OAPNER STOVER.

Witnesses:

MAHLON H. STOUT, JOHN J. StrovER.

